It is a field of medicine that diagnoses and treats diseases related to the ear, nose, and throat. The Department of Otorhinolaryngology not only diagnoses and treats diseases but also conducts related clinical research and training for residents. In the past, the field of otolaryngology was limited to the ear, nose, and throat, but with the recent advances in medicine such as microscopy and endoscopic surgery, the area covered by otolaryngology has also greatly increased. As a result, a specialized department was created within the Department of Otorhinolaryngology.

In the Department of Ear Medicine

It deals with diseases related to the ear, such as hearing loss, chronic otitis media or otitis media with effusion, dizziness related to the sense of balance, and other diseases related to facial nerve paralysis. Compared to the past, modern medicine in the field of ear continues to make progress in various fields, including the introduction of endoscopic ear surgery and auditory rehabilitation surgery. The Department of Ear Medicine at Busan St. Mary's Hospital will focus on treatment to provide the best treatment for visitors through academic exchanges and research.

In the Department of Nose Medicine

It deals with diseases related to the nose. We diagnose and treat allergic rhinitis, septal deviation, and sinus infection. We also perform diagnosis, polysomnography, and treatment for snoring and sleep apnea. In addition, We perform surgery on benign tumors in the nose using an endoscope.

In the Department of Head and Neck Medicine

It is a department that deals with diseases that occur in the head and neck, except for the eyeball. We perform surgical treatment for various inflammatory diseases such as tonsillitis, pharyngitis, laryngitis, salivary gland inflammation, laryngopharyngeal reflux disease, and benign tumors in the head and neck, such as papilloma, fibroma, and lipoma. We also diagnose voice injuries (hoarseness) caused by abnormalities in the structure and movement of the vocal cords and provide appropriate treatment. On the other hand, frenulum surgery helps to correct the pronunciation of infants and young children.